Review on 🔥 Kidde Hardwired Smoke Alarm with Lithium Battery Backup, Interconnect, Test-Silence Button, Pack of 2 - Smoke Detectors by Paul Gravely

Bought 8 to replace all the existing sensors in the house. I liked the idea of not changing the batteries every year (estimated battery life is 10 years). Well 2 out of 8 are already out of order - constantly disruptive (no cooking, new house, no dust problem, middle of the night) - and it's great that there's no other way to spin as it seals the internal batteries have to turn them off except kill them. One served a year, the second - 3. This is 25% of the marriage. Just choose something else.